Translation from English: Piranhas don't eat bananas.
Summary
"A Bruno le encantan las bananas. El problema es que Bruno es una piran~a, y a sus amiguetes no les gusta nada esa aficion que le ha entrado por la fruta. No les gusta ni un pelo..." -- publisher website
"Brian loves bananas. Trouble is, Brian's a piranha. And his friends aren't happy about his fondness for fruit. No, they're not happy at all ..." -- translation from English